16 votes
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How badly did I oxidize my beer?

Some brewers have a unwarranted paranoia about oxygen and beer. Relax. If there were literally a "few bubbles" in the keg then I very much doubt it will cause the beer to oxidise. If the beer was not ...
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  • 5,626
7 votes
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Worried about oxidation

It's fine. I assume the beer is still actively fermenting, in which case not only will freshly-produced CO₂ (somewhat) displace the O₂ in the headspace, but the yeast can still clean up any O₂ that ...
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  • 10.1k
7 votes
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Could this have oxidized the beer?

'Anything to worry about?' Really, it's nothing to worry about at all. 'Could this have oxidized the beer?' Sure, technically, but to a really negligible amount. How much this might effect the ...
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5 votes
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Oxidation during bottling

It really shouldn't be an issue for oxidation. I wouldn't worry about it. When racked properly only the surface area is exposed. At worse maybe the last couple bottles may have an issue. The beer is ...
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5 votes
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Is falling bad for fermentation?

Mostly you should be concerned with contamination. If the fall didn't compromise the lid or cause unwanted wild yeast or bacteria to get into your fermenter then you should be fine. Since I am ...
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  • 371
4 votes
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Effect of temperatures over beer oxidation

It has been said that for every 10C of temperature increase the oxidation rate roughly doubles. So yes temperature does increase oxidation rate. In general increases in heat increase all chemical ...
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4 votes
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Oxidation of red wine during racking and bottling

The author of the article is reliable, Daniel Pambianchi has written books on homewinemaking. Avoid oxydation You need to be concerned about oxydation mainly after the completion of fermentation. ...
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4 votes
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Sealing flip-top bottles with wax

Wax dip gives an added layer of protection and look great too. The most functional part of a wax dip is to prevent crimp caps from rust from environment. Especially for beverages that will age in the ...
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4 votes

How badly did I oxidize my beer?

It shouldn't be a big problem.
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  • 33.3k
3 votes

Is falling bad for fermentation?

If the drop did not cause your fermenter to break, and it did not cause suction of fluid through the waterlock so that air could enter, your fermentation should still be all right. I do not think that ...
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  • 3,565
3 votes

Sealing flip-top bottles with wax

No. There is no real advantage in dipping swing tops into molten wax before sealing. More to the point little bits of wax from the top might find their way into the mead. Being wax they tend to float ...
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  • 5,626
3 votes
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Camping and Brewing

No problem on fermenter transport. Fermentation will still be going so no worries about oxidation. But I'd recommend a bucket rather than a carboy. Unbreakable.
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3 votes

Oxidation during bottling

It may surprise some readers to learn that I pour my beer from primary to secondary fermentation vessel and then (some days later) pour it back to mix in the priming sugar. I then use a "open" siphon ...
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  • 5,626
3 votes

Oxidation of red wine during racking and bottling

I have 20 years of winemaking experience, 15 years owning my own winery. Let me tell you what I did and what the vast majority of winemakers do. Very little. Use sulphites and maintain their levels ...
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  • 3,002
3 votes
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Is the air glug in a conical not causing oxidation?

First of all, once you remove the trub bulb, there is no need to add another one. If you don't add another trub bulb and open the valve, how are you getting your "glub"? The idea is, attach the bulb ...
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  • 1,142
3 votes
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Why do people purge kegs before force carbonating?

Because that's not how gasses work. :) Gasses in a space, especially under pressure, are going to come into an equilibrium, a homogeneous combination. While during active fermentation, or for a brief ...
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  • 10.1k
3 votes
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Does oxydation contribute to the acidicity of raw pressed apple juice?

Oxidation has the opposite affect. It creates hydroxides. What oxidation will do however is impart a candyish jolly rancher like flavor which I personally find distasteful. A typical and well ...
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  • 975
3 votes

What's the best way to ship bottles of beer 3000km in hot weather?

Google for polystyrene wine storage. Those containers are great for shipping beer and you can get them in various sized. When you have your container get bubble wrap and place a double layer of bubble ...
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  • 2,446
3 votes
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What's the best way to ship bottles of beer 3000km in hot weather?

All you can really do is ensure that your fermentation, sanitation and bottling practices are as sound as possible. You should (as you seem to) definitely expect that your beer will see the worst ...
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2 votes
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O2-absorbing crowns - do they absorb other things?

I would be surprised if there is any merit to it, at least as far as my understanding of the science behind the oxygen absorbing crowns go. O2 can't simply be absorbed - it has to bond with another ...
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  • 27k
2 votes

O2-absorbing crowns - do they absorb other things?

It appears that there are both homebrew and commercial issues with absorbing crown liners causing some issues. There is a tweet circa 2010 by Ray Daniels (Cicerone) claiming 2/3s of a loss of aroma ...
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  • 51
2 votes
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What do I risk for leaving my beer exposed to open air through the airlock hole?

Your biggest problem is probably bugs; fruit flies, flies, cockroaches, etc. If possible, get someone to cover the beer and protect it from critters. Cling wrap and an elastic should be enough. Yes, ...
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  • 2,446
2 votes

Cold crash with airlock or not

There's no need for an airlock. By the time you get to cold crashing, fermentation is done so the need for an airlock is gone. I seal the fermenter using a solid stopper before cold crashing.
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2 votes

How badly did I oxidize my beer?

O2 is important to big brewers because the beer will get warm and cold many times and they can't control the age. Drink it fresh and enjoy it. It might not last as long as a super low DO beer like ...
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  • 31
2 votes
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Cold crashing and risk of oxidation

This is a valid way to do it. There will be a slight amount of air and therefore oxygen sucked in, but not enough that I would worry about it.
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  • 6,983
1 vote

Oxidation during bottling

You might have issues. Taste your beer every week to see how the flavor is developing and keep notes. I recently had to dump a bunch of bottles that had become oxidized when I racked to the bottling ...
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  • 411
1 vote

Recycling Screw-top Bottles for Homebrew

If you have a corker, you can use a cork on wine screw-top bottles. Even if the opening is sometimes lightly smaller, the cork will go in. I tried it many times with success, I also used corks with ...
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  • 4,736
1 vote

Where tanins are good in beers?

You're absolutely right that tannins (a kind of polyphenol) are anti-oxidative and that increased levels in finished have been linked to a lower degree of beer staling (in this paper, for example). I'...
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1 vote
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How long to wait to bottle after adding sulfites?

Add the campden tablets and once they have dissolved you are good to go with your bottling. For further reading: http://www.eckraus.com/blog/add-campden-tablets-to-wine
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  • 6,983
1 vote

Cold crash with airlock or not

If using a carboy as a fermenter, simply use sanitized foil over the top and neck. I've done this for years for ales and lagers with no ill effects.
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